... big size numerical control devices such as curving machine, CNC machine, computer embroider machine, packing machine and etc.FEATURESl High performance, low pricel ... pusle and direction signal of the Stepper or Servo driver , can control the lathe and milling machine to work the ... speed control signal , this can make the frenquency of the speed of the spindle the dimension: 170mm*115mm locating hole: ...